Study of high-Performance concrete mixtures with residual Fluid Catalytic Cracking using Simplex-Centroid design method

Abstract

This study investigates the properties of highperformance concrete (HPC) mixtures, including residual fluid catalytic cracking (RFCC). Using the Simplex-Centroid Design Methodology, the RFCC is optimized by partly replacing silica fume and quartz powder in a high-performance concrete mixture. The study investigates both the benefits and drawbacks of RFCC implementation in HPC. Although RFCC enhances compressive strength, its water absorption characteristics may decrease flowability. The analysis results show that adequate RFCC proportioning can minimize variations in compressive strength, whereas adding silica fume is essential to preserving the compressive strength of HPC containing RFCC.

Keywords: RFCC; HPC; simplex centroid design; compressive strength; and slump flow.